When a mother sees someone being rude to their child it’s only natural for her to want to protect them. And that’s exactly what Parvinder Kaur wanted to do when she came across some racist tweets about her son.

Even though he’s an adult with a family of his own, she still felt it was her duty to protect her boy.

Simran Jeet Singh is a professor at Trinity University.

Singh describes himself in his Twitter bio as a father, educator, writer, marathoner, activist, speaker, husband, and most importantly an anti-racist. The 33-year-old also speaks his mind on Twitter, which can attract both positive and negative reactions.

Although it’s impossible to know every one of his 46,000 plus followers, he does know one, and he knows them very well.

“I asked her why she started a new account, and she said she felt like not many people were on Facebook anymore, and that a lot of the stuff she wanted to follow — like political news and justice work — was more accessible on Twitter,” Singh told BuzzFeed News about his mother, Parvinder Kaur, creating a Twitter account.

The Sikh professor posts personal updates as well as commentary on political news.

While Kaur read some of her son’s tweets and caught up on tweets from other accounts she noticed something startling.

There were a number of tweets directed towards Singh that told him to “go back” or “go home.” She brought them up to her son during a phone call and told him to relay a message from her to his followers.

Kaur wanted her son’s followers to know she’d be glad if he would go home.

My mom just joined Twitter and saw all the racist messages where people tell me to "go home" and "go back to where I came from." She wanted me to thank you all. She really wants me to move back to Texas.

Kaur’s attitude towards negativity helped him and his siblings when they were growing up.

The 33-year-old credited his mother’s humor with helping his family deal with some of the negativity that they endured living in Texas. He said that while they do take threats that may seem violent seriously, he finds it “healthier to make the best of it.”